168 



POLYPODIA.CE.ffi. 



HAB. 



Mt. Arisau : Fuukiko, Jan., 1912, leg. B. HAYATA et S. SASAKI. 



Compared with a Japanese specimen 

 in the Tokyo herbarium. This fern is ex- 

 tremely variable in the size of the fronds. 



Dryopteris (Eudryoptcris) pachy- 

 phylla HAYATA sp. uov. (Fig. 108). Elri- 

 xoma ? Stipes 20 cm. lougus s q u a in a t u s 

 stramiueus, squamis lineari-lanceolatis 

 usque 7 mm. longis usque 1 mm. latis longe 

 acumiuatis basi rotuudatis plus minus 

 cord at is vel subpeltatis margine parce 

 breveque ciliolatis. Frous lauceolata stipite 

 multo lougior 55 cm. longa 24 cm. lata apice 

 cuspidato-acumiuata medio deorsum fequi- 

 lata basi plus minus angustior truncata 

 pinnata, pinuis mediis longissimis a se 3 

 cm. rernotis suboppositis vel alternis augulo 

 recto divaricatis lineari-lanceolatis 15 cm. 

 lougis 25 mm. latis apice acuminatis basi 

 truucatis sessilibus latissimis pinnatifidis 

 versus basin circ. ad rhachin fissis, sursmn 



prope rhachin fissis, 

 d segmeutis inferiori- 



bus rectaugularibns 

 14 mm. longis 5 mm. 

 latis apice truncatis 

 approximatis a costa 

 pinnarum augulo 80 

 divaricatis margine 

 remote minuteque 



Fig. 1O8, Dryopter-is pacJn/phylla HAYATA; a, the plant ; 

 c, a scale on the f rond-rhachis ; d, basal portion of a pinna ; 

 b, a sorus. 



semilatis apice deuticulatis. Textura coriacea pagina supra glabra uitida 

 subtus pallidior glabra, rhachibus cleusiuscule squamatis, costis primariis 

 supra canaliculatis, subtus elevatis squamis dispositis, costulis venisque 



